Could this be the cause of my image problems in IE? can I just delete these lines? Or is there a better way to eliminate borders and shadows that won't confuse IE , or is the problem origination somewhere else all together?

The problems do not come from the non-validating CSS. If a browser does not understand a style rule, it merely ignores it. Incidently, The so-called non-validating rules are proprietary properties for certain browsers.

When I look at your page in IE it is very jumpy; but does work. This may have something to do with the size of the images. Try optimizing these.